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參數(shù)資料
| 型號(hào)： | A1425A-PQG100I |
| 元件分類(lèi)： | FPGA |
| 英文描述： | FPGA, 310 CLBS, 2500 GATES, PQFP100 |
| 封裝： | PLASTIC, QFP-100 |
| 文件頁(yè)數(shù)： | 2/68頁(yè) |
| 文件大?。?/td> | 489K |
| 代理商： | A1425A-PQG100I |
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Routed Clocks
The routed clock networks are referred to as CLK0 and CLK1.
Each network is connected to a clock module (CLKMOD)
that selects the source of the clock signal and may be driven
as follows (see Figure 6):
externally from the CLKA pad
externally from the CLKB pad
internally from the CLKINA input
internally from the CLKINB input
The clock modules are located in the top row of I/O modules.
Clock drivers and a dedicated horizontal clock track are
located in each horizontal routing channel. The function of
the clock module is determined by the selection of clock
macros from the macro library. The macro CLKBUF is used to
connect one of the two external clock pins to a clock network,
and the macro CLKINT is used to connect an internally
generated clock signal to a clock network. Since both clock
networks are identical, the user does not care whether CLK0
or CLK1 is being used. Routed clocks can also be used to drive
high fanout nets like resets, output enables, or data enables.
This saves logic modules and results in performance
increases in some cases.
Routing Structure
The ACT 3 architecture uses vertical and horizontal routing
tracks to connect the various logic and I/O modules. These
routing tracks are metal interconnects that may either be of
continuous length or broken into segments. Segments can be
joined together at the ends using antifuses to increase their
lengths up to the full length of the track.
Horizontal Routing
Horizontal channels are located between the rows of modules
and are composed of several routing tracks. The horizontal
routing tracks within the channel are divided into one or
more segments. The minimum horizontal segment length is
the width of a module-pair, and the maximum horizontal
segment length is the full length of the channel. Any segment
that spans more than one-third the row length is considered a
long horizontal segment. A typical channel is shown in
Figure 7. Undedicated horizontal routing tracks are used to
route signal nets. Dedicated routing tracks are used for the
global clock networks and for power and ground tie-off tracks.
Vertical Routing
Other tracks run vertically through the modules. Vertical
tracks are of three types: input, output, and long. Vertical
tracks are also divided into one or more segments. Each
segment in an input track is dedicated to the input of a
particular module. Each segment in an output track is
dedicated to the output of a particular module. Long
segments are uncommitted and can be assigned during
Figure 5 Function Diagram for I/O Pad Driver
PAD
OE
SLEW
DATAOUT
DATAIN
IEN
INEN
OUTEN
Figure 6 Clock Networks
CLKB
CLKA
FROM
PADS
CLOCK
DRIVERS
CLKMOD
CLKINB
CLKINA
S0
S1
INTERNAL
SIGNAL
CLKO(17)
CLKO(16)
CLKO(15)
CLKO(2)
CLKO(1)
CLOCK TRACKS
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PDF描述 |
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| A1425A-PQG160C | FPGA, 310 CLBS, 2500 GATES, 125 MHz, PQFP160 |
| A1425A-PQG160I | FPGA, 310 CLBS, 2500 GATES, PQFP160 |
| A1425A-VQG100C | FPGA, 310 CLBS, 2500 GATES, 125 MHz, PQFP100 |
| A1425A-VQG100I | FPGA, 310 CLBS, 2500 GATES, PQFP100 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A1425A-PQG160C | 功能描述:IC FPGA 2500 GATES 160-PQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - FPGA（現(xiàn)場(chǎng)可編程門(mén)陣列） 系列:ACT™ 3 產(chǎn)品變化通告:XC4000(E,L) Discontinuation 01/April/2002 標(biāo)準(zhǔn)包裝:24 系列:XC4000E/X LAB/CLB數(shù):100 邏輯元件/單元數(shù):238 RAM 位總計(jì):3200 輸入/輸出數(shù):80 門(mén)數(shù):3000 電源電壓:4.5 V ~ 5.5 V 安裝類(lèi)型:表面貼裝 工作溫度:-40°C ~ 100°C 封裝/外殼:120-BCBGA 供應(yīng)商設(shè)備封裝:120-CPGA（34.55x34.55） |
| A1425A-PQG160I | 功能描述:IC FPGA 2500 GATES 160-PQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - FPGA（現(xiàn)場(chǎng)可編程門(mén)陣列） 系列:ACT™ 3 產(chǎn)品變化通告:XC4000(E,L) Discontinuation 01/April/2002 標(biāo)準(zhǔn)包裝:24 系列:XC4000E/X LAB/CLB數(shù):100 邏輯元件/單元數(shù):238 RAM 位總計(jì):3200 輸入/輸出數(shù):80 門(mén)數(shù):3000 電源電壓:4.5 V ~ 5.5 V 安裝類(lèi)型:表面貼裝 工作溫度:-40°C ~ 100°C 封裝/外殼:120-BCBGA 供應(yīng)商設(shè)備封裝:120-CPGA（34.55x34.55） |
| A1425A-STDCQ132B | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:ASIC |
| A1425A-STDCQ132M | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:ASIC |
| A1425A-VQ100C | 功能描述:IC FPGA 2500 GATES 100-VQFP RoHS:否 類(lèi)別:集成電路 (IC) >> 嵌入式 - FPGA（現(xiàn)場(chǎng)可編程門(mén)陣列） 系列:ACT™ 3 產(chǎn)品變化通告:XC4000(E,L) Discontinuation 01/April/2002 標(biāo)準(zhǔn)包裝:24 系列:XC4000E/X LAB/CLB數(shù):100 邏輯元件/單元數(shù):238 RAM 位總計(jì):3200 輸入/輸出數(shù):80 門(mén)數(shù):3000 電源電壓:4.5 V ~ 5.5 V 安裝類(lèi)型:表面貼裝 工作溫度:-40°C ~ 100°C 封裝/外殼:120-BCBGA 供應(yīng)商設(shè)備封裝:120-CPGA（34.55x34.55） |
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